On developing company culture: "Part of company culture is path-dependent—it's the lessons you learn along the way."

On new ideas: "There'll always be serendipity involved in discovery."

On haters: "If you never want to be criticized, for goodness' sake don't do anything new."

On motivation: "I strongly believe that missionaries make better products. They care more. For a missionary, it's not just about the business. There has to be a business, and the business has to make sense, but that's not why you do it. You do it because you have something meaningful that motivates you."

On choosing friends: "Life's too short to hang out with people who aren't resourceful."

On morals: "The one thing that offends me the most is when I walk by a bank and see ads trying to convince people to take out second mortgages on their home so they can go on vacation. That's approaching evil."

One strategy: "We've had three big ideas at Amazon that we've stuck with for 18 years, and they're the reason we're successful: Put the customer first. Invent. And be patient."

On growth: "All businesses need to be young forever. If your customer base ages with you, you're Woolworth's."

On pivoting: "If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve."

On marketing: "In the old world, you devoted 30% of your time to building a great service and 70% of your time to shouting about it. In the new world, that inverts."

On pricing: "There are two kinds of companies, those that work to try to charge more and those that work to charge less. We will be the second."

On empowering a team: "I would never say no to something the team wanted to do, but I might say yes to something the team didn't want to do. You want there to be multiple ways to get to 'yes' because you want to encourage risk-taking."